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      1 /*	$NetBSD: authenc.c,v 1.12 2005/02/06 05:58:20 perry Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1991, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. Neither the name of the University nor the names of its contributors
     16  *    may be used to endorse or promote products derived from this software
     17  *    without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 #ifndef lint
     34 #if 0
     35 static char sccsid[] = "@(#)authenc.c	8.2 (Berkeley) 5/30/95";
     36 #else
     37 __RCSID("$NetBSD: authenc.c,v 1.12 2005/02/06 05:58:20 perry Exp $");
     38 #endif
     39 #endif /* not lint */
     40 
     41 #if	defined(AUTHENTICATION) || defined(ENCRYPTION)
     42 #include "telnetd.h"
     43 #include <libtelnet/misc.h>
     44 
     45 int
     46 telnet_net_write(unsigned char *str, int len)
     47 {
     48 	if (nfrontp + len < netobuf + BUFSIZ) {
     49 		output_datalen((const char *)str, len);
     50 		return(len);
     51 	}
     52 	return(0);
     53 }
     54 
     55 void
     56 net_encrypt(void)
     57 {
     58 #ifdef	ENCRYPTION
     59 	char *s = (nclearto > nbackp) ? nclearto : nbackp;
     60 	if (s < nfrontp && encrypt_output) {
     61 		(*encrypt_output)((unsigned char *)s, nfrontp - s);
     62 	}
     63 	nclearto = nfrontp;
     64 #endif	/* ENCRYPTION */
     65 }
     66 
     67 int
     68 telnet_spin(void)
     69 {
     70 	ttloop();
     71 	return(0);
     72 }
     73 
     74 char *
     75 telnet_getenv(char *val)
     76 {
     77 	return(getenv(val));
     78 }
     79 
     80 char *
     81 telnet_gets(char *prompt, char *result, int length, int echo)
     82 {
     83 	return((char *)0);
     84 }
     85 #endif	/* defined(AUTHENTICATION) || defined(ENCRYPTION) */
     86